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STM32U595AI Datenblatt(PDF) 310 Page - STMicroelectronics |
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STM32U595AI Datenblatt(HTML) 310 Page - STMicroelectronics |
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310 / 377 page ![]() Electrical characteristics STM32U59xxx 310/377 DS13633 Rev 1 Table 123. Asynchronous non-multiplexed SRAM/PSRAM/NOR read timings(1) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 3 × tHCLK - 1 3 × tHCLK + 1 ns tv(NOE_NE) FMC_NEx low to FMC_NOE low 0 5 tw(NOE) FMC_NOE low time 2 × tHCLK - 1 2 × tHCLK + 1 th(NE_NOE) FMC_NOE high to FMC_NE high hold time THCLK - tv(A_NE) FMC_NEx low to FMC_A valid - 2 th(A_NOE) Address hold time after FMC_NOE high 2 × tHCLK - 1 - tsu(Data_NE) Data to FMC_NEx high setup time tHCLK + 15 - tsu(Data_NOE) Data to FMC_NOEx high setup time 15 - th(Data_NOE) Data hold time after FMC_NOE high 0 - th(Data_NE) Data hold time after FMC_NEx high 0 - tv(NADV_NE) FMC_NEx low to FMC_NADV low - 1.5 ns tw(NADV) FMC_NADV low time - THCLK + 1 1. Evaluated by characterization. Not tested in production. Table 124. Asynchronous non-multiplexed SRAM/PSRAM/NOR read-NWAIT timings(1) Symbol Parameter Min Max Unit tw(NE) FMC_NE low time 8 × tHCLK - 1 8 × tHCLK + 1 ns tw(NOE) FMC_NWE low time 7 × tHCLK - 1 7 × tHCLK + 1 tw(NWAIT) FMC_NWAIT(2) low time tHCLK - tsu(NWAIT_NE) FMC_NWAIT valid before FMC_NEx high 5 × tHCLK + 9.5 - th(NE_NWAIT) FMC_NEx hold time after FMC_NWAIT invalid 4 × tHCLK + 10 - 1. Evaluated by characterization. Not tested in production. 2. NWAIT pulse is equal to one HCLK cycle. |
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